Journal ArticleDOI
Partial coverage of rectangular plates by unconstrained layer damping treatments
TLDR
In this paper, the effects of partial application on the modal frequencies, loss factors and mode shapes are discussed, and specific recommendations are made for the near-optimum distribution of the damping material on the panel surface which is effective for many modes of panel response.About:
This article is published in Journal of Sound and Vibration.The article was published on 1985-09-22. It has received 30 citations till now.read more
Citations
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Journal ArticleDOI
Newtonian and Variational Formulations of the Dynamics of Plates with Active Constrained Layer Damping Treatments
Chul H. Park,Amr M. Baz +1 more
TL;DR: In this article, the authors present Newtonian and variational formulations of the dynamics of laminated plates treated fully with active constrained layer damping (ACLD) and derive the governing equations of the plate/ACLD system to describe the interaction between the dynamic dynamics of the plates, the viscoelastic damping layer and the active piezoelectric constraining layers.
Journal ArticleDOI
Study of unconstrained layer damping treatments applied to rectangular plates having central cutouts
TL;DR: In this article, the damping effectiveness of partially applied unconstrained layer damping treatments on rectangular plates having central rectangular cutouts has been investigated analytically by the finite element method.
Dissertation
Extension de la méthode SmEdA par la prise en compte des matériaux dissipatifs en moyennes fréquences
TL;DR: In this article, the authors propose a semi-complexe plaque rectangulaire couplee, a cavite parallelepipedique, a mobilite d'entree, the puissance injectee et les energies des sous-systemes.
Journal ArticleDOI
Effect of damping distribution on coupling in panel–cavity systems: Conditions for optimality through a modal approach
TL;DR: In this paper, the authors examined an acoustic-structure interaction problem for non-proportional damped systems and derived coupled responses for a structure and acoustic enclosure using a modified modal coupling formulation.
Dissertation
Study of damping in layered and weldedbeams
TL;DR: In this paper, the effects of welded joints on the gross vibration characteristics of a vibrating structure have been investigated and a damping model that is capable of describing these effects has been developed.
References
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Journal ArticleDOI
Response of plates with unconstrained layer damping treatment to random acoustic excitation, part I: Damping and frequency evaluations
TL;DR: In this article, a complete understanding of the various modes of vibration and the modal damping associated with each mode is required for theoretical evaluation of the response of a structure under random acoustic excitation.
Journal ArticleDOI
Vibration of metal plates covered with vibration damping layers
TL;DR: In this paper, a series of measurements were carried out to examine the effectiveness of vibration damping layers on 2×1 m2 thin metal plates, which were covered with viscoelastic damping.
Journal ArticleDOI
The Damping Effects of Viscoelastic Materials: Part 2—Transverse Vibrations of Plates With Viscoelastic Coatings
TL;DR: Elastic metal thin plates transverse resonant free vibrations, analyzing viscoelastic coatings damping effects as discussed by the authors, were used to analyze the damping effect of thin plate thinning.
The optimum use of unconstrained layer damping treatments.
D J Mead,T G Pearce +1 more
TL;DR: In this paper, the effect of concentrating the treatment in the regions of highest bending moment in order to use all the material more effectively was investigated, and three methods of analysis were presented, two of them being approximate but relatively rapid in use.